Home / 498,401.48-687,554.51-326,243.61

Finding the Fourth Proportional to 498,401.48, 687,554.51 and 326,243.61

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Solution

The fourth proportional to 498,401.48, 687,554.51 and 326,243.61 is: 450,059.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,401.48 : 687,554.51 = 326,243.61 : x
  2. Step 2: Convert to fraction form
    498,401.48/687,554.51 = 326,243.61/x
  3. Step 3: Cross multiply
    498,401.48x = 687,554.51 × 326,243.61
  4. Step 4: Simplify right side
    498,401.48x = 224,310,263,782.96
  5. Step 5: Solve for x
    x = 224,310,263,782.96/498,401.48
  6. Step 6: Final answer
    x = 450,059.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.